Nigel is planning his training schedule for a marathon for over 4-days period. he is ucertain how many miles he will run on two days. one expression for the total miles he will run is 12+y+17+z use the communitive property to write a equivalet expression

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next